Home / 1,475,251.20-2,212,876.80-477,979.20

Finding the Fourth Proportional to 1,475,251.20, 2,212,876.80 and 477,979.20

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Solution

The fourth proportional to 1,475,251.20, 2,212,876.80 and 477,979.20 is: 716,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475,251.20 : 2,212,876.80 = 477,979.20 : x
  2. Step 2: Convert to fraction form
    1,475,251.20/2,212,876.80 = 477,979.20/x
  3. Step 3: Cross multiply
    1,475,251.20x = 2,212,876.80 × 477,979.20
  4. Step 4: Simplify right side
    1,475,251.20x = 1,057,709,082,562.56
  5. Step 5: Solve for x
    x = 1,057,709,082,562.56/1,475,251.20
  6. Step 6: Final answer
    x = 716,968.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.